A306970 Numbers of the form 8*k+3 not represented by 2*x^2+4*y^2+4*y*z+9*z^2.

3, 43, 163, 907

Offset

1,1

Comments

There may be no further terms.

Links

Table of n, a(n) for n=1..4.

Irving Kaplansky, The first nontrivial genus of positive definite ternary forms, Mathematics of Computation, Vol. 64 (1995): 341-345.

Crossrefs

Cf. A017101 (numbers of the form 8*k+3).

Sequence in context: A042661 A281503 A030990 * A376737 A054698 A229695

Adjacent sequences: A306967 A306968 A306969 * A306971 A306972 A306973

Keyword

nonn,more

Author

N. J. A. Sloane, Mar 26 2019

Status

approved